Home/CVE/Infinite loop in the BitTorrent DHT dissector in Wireshark 3.6.0 and 3.4.0 to 3.4.10 allows denial of service via packet
CVE

CVE-2021-4184

Infinite loop in the BitTorrent DHT dissector in Wireshark 3.6.0 and 3.4.0 to 3.4.10 allows denial of service via packet

Infinite loop in the BitTorrent DHT dissector in Wireshark 3.6.0 and 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file.

HIGH · CVSS 7.5 EPSS 0.00324
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')
▤

Affected Products & Versions

6
wireshark>= 3.4.0 and <= 3.4.10
wiresharkall versions
fedoraproject fedoraall versions
debian linuxall versions
oracle http serverall versions
oracle zfs storage appliance kitall versions
⚠

Public Exploits & PoCs

1
pocgitlab.com · 17754gitlab.com
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@gitlab.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD30 Dec 2021 · 10:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

5
suse-csafopenSUSE-SU-2024:11703-1
suse-csafopenSUSE-SU-2022:0375-1
suse-csafSUSE-SU-2022:0375-1
msrcCVE-2021-4184
oracle-cpuoracle-cpu-Oracle-ZFS-Storage-Appliance-Kit-10026--CVE-2021-4184
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4184.jsonThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00041.htmlMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q6XGBKWSQFCVYUN4ZK3O3NJIFP3OAFVT/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5AEK3XTOIOGCGUILUFISMGX54YJXWGJ/
https://security.gentoo.org/glsa/202210-04Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.htmlThird Party Advisory
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